Older software may require older versions of libraries like bison , flex , or texinfo . You may need to install legacy versions of these packages from your package manager.

: This is Apple's open-source collection of low-level developer tools for macOS and Darwin, conceptually similar to the GNU binutils package on Linux. It provides essential utilities for working with Mach-O binaries, the executable file format used by macOS, iOS, watchOS, and tvOS.

Upon opening, the app will ask to install the default plugins.

Be aware that "cctools" is also used for a and a statistical R package (implementing kernel density estimation). This article focuses primarily on the first two major definitions.